Random GPU Activity Decline

Mining Mining Support
1

I am experiencing an odd behavior with one of my mining setups. I am running a single Sapphire HD7970 in this machine with Windows 10 and Radeon Crimson drivers v17.4.2, and am getting an inconsistent hash rate. I am To clarify this further; immediately after a computer restart and initiating Claymore miner v12.4 i can obtain somewhere in the region of 270H/s to 300H/s. After an inconsistent period of time that ranges from approximately 30mins to 1h30mins the rate will suddenly plummet to about 180H/s. From what i can see this appears to be due to the activity of the GPU (please see screenshot) - it is visible where the card is idle till Claymore miner is started (roughly 98%) and then shortly after it tails off to about 78%. It appears that it is irrelevant whether the card is overclocked or not because the issue happens regardless.

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What i can’t work out is what is triggering this change. Has anyone else experienced this issue and/or does anyone have a fix for it?
Thanks in advance.

2

my suggestion would be to drop your driver to either 16.3.2 or 15.12

3

Thank you for the suggestion - i will locate these drivers and try that out. Hopefully they are still on AMD’s website.

4

They are… just to the manual search, when you see the screen for the newest driver look on the right column for previous drivers

5

Thanks for the pointer on this. Strangely at the moment the issue seems to have disappeared and it appears to be related Mozilla Firefox. I have to use the computer for admin related stuff and when running Firefox this issue was occurring all the time. However i have swapped to Opera for browsing and this seems to have resolved the issue. If it reoccurs i will update the post. Thanks for the suggestions CitricAcid.